Mechanism for drying varnished paper



(No Model.) 2 sheets-sheen 1.

W. HOLLINGSWORTH. MBGHANISM FOR DRYING VARNISHEDPAPER.

No. 562,534. Patented June 28, 1896.

| I I i I f I l l I I l I I l l I l l I (No Model.) 2 sheets-sheep 2 W.HOLLINGSWORTH. MBGHANISM FOR DRYING VARNISHBD PAPER.

No. 562,534. PatentedJune 23, 1896.

UNITED STATES PATENT EETCE.

1WlLliIAlVI HOLLINGSWTORTH, OF BALTIMORE, MARYLAND.

MECHANISlVl FOR DRYING VARNISHED PAPER.

SPECIFICATION forming part of Letters Patent No. 562,534, dated June 23,1896.

Application filed March 31, 1894. Serial No. 505,884. (No model.)

To a/ZZ whom it may concern:

Be it known that I, WILLIAM HOLLINGS- WORTH, a citizen ofthe UnitedStates, residing at Baltimore city, in the State of Maryland, haveinvented new and useful Improvements in Mechanism for Drying Paper whichhas been Treated with Varnish, Size, or other Material, of which thefollowing is a specification.

M y invention relates to mechanism for drying paper which has beentreated with varnish, size, or other material, and especially i'ordrying labels after the same have been newly printed or varnished.

It is my purpose to provide a simple apparatus by which the labels,sheets, or similar material may be transferred from one convcyer-belt toanother without exposing the printed, varnished, or otherwise coatedsurface to contact and without folding, twining, or wrinkling the sheet.

It is my purpose, also, to provide a transferring mechanism consistingof a series ot' transf er-tapes havin g independent action and a iiier-frame adapted to receive the sheet from a convcyer-belt anddeposit itupon the transfer-tapes, which carry it upon a second conveyer-beltmoving in the same direction with said tapes, but opposite to themovement of the first conveyer-belt.

The invention consists, to these ends, in the parts and combinations ofparts hereinafter fully described, and then particularly pointed out inthe claims.

Referring' to the accompanying drawings, Figure 1 is a side elevation ofa portion of one end of a drying-chamber containing a series ofoppositely-moving conveyer-belts, of the usual form, my invention beingshown in full lines as incorporated with known parts shown by dottedlines. Fig. 1 is a similar view of a portion of the opposite end of thedrying-chamber. Fig. 2 is a plan view of the Hier-frame andtransfer-tapes at one end of the drying-chamber, together with a portionof one of the conveyer-belts.

The reference-numeral 1, in said drawings, indicates the drying-chamber,which contains a series of horizontal conveyer-belts 2, carried by rolls3, and arranged one beneath another with a suitable space between. Ihave shown three of these conveyer-belts in the drawings, but it isevident that any desi-red number may be employed. Said belts are drivenat suitable speed in opposite directions, as indicated bythe arrows inFigs. 1 and 1a. The sheets, after treatment, are carried to anddelivered upon the surface of the upper conveyer-belt by means of tapes4 and 5 or by any other mechanism preferred, these parts forming noportion of my invention. At the other end of the drying-chamber 1 Iarrange a series of transfer-tapes 6, carried by rolls 7 and 8 in adirection of movement contrary to the travel of `the firstconveyer-belt. The roll 7 is preferably arranged just above the surfaceof the second conveyer-belt and between the end of the same and the endof the irst, or upper, conveyer-belt, but may be located at any point atwhich the transfertapes carriedby itwill be enabled to deliver a sheetlying upon them to the second conveyer-belt, which moves in the samedirection with the tapes,but opposite to the first conveyer-belt. Therolls 8 consist of independent spools, cach supported by a bracket 9,adj ustablymounted on a rod 12 by means of a set-screw 13, which passesthrough one of two lugs 1i on the bracket and engages the rod, thelatter being supported upon posts at a suitable distance from the end ofthe conveyer-belt. Upon the same posts is mounted a rock-shaft 15,arranged somewhat beneath the rolls 8,and upon said rod are mountedrigidly a series of iiierrods 16, provided with adjustable stop-pins 10,and arranged at such intervals as to alternate with the transfer-tapes6.

By rocking the shaft 15, the flier-rods 1G will be vibrated through anarc of a circle, and the rods, which constitute a structuresubstantially similar to a Hier-frame, may be caused to occupy,alternately, the positions shown in dotted and in full lines in Figs. 1or 1n. When in the position shown in full lines, the free ends of theflier-rods will lie nearly in line with the axis of the roll 3, carryingthe upper conveyer-belt, and in position to receive the sheet carried bythe same. When in the position shown by dotted lines, the flier-rodswill lie beneath the transfer-tapes 6, or between'the parallelportionsof said tapes and in substantial parallelism with them, the

sheet being thereby laid upon said tapes and removed from theflier-rods. The movement of the transfer-tapes nowcarries the sheet IOOupon and delivers it to the second conveyerbelt, which travels in thesame direction and thus preserves the continuity of the sheet.

The rock-shaft 15,carrying the flier-rods 1G, is operated by a rod 17,one end of which is adj ustably connected to a slotted lever-arm 18 onthe rock-shaft 15. A spring 19 normally draws said rod in a direction toswing the flier-rods into the position shown in dotted lines, the rodhaving such length that it extends throughout the length of thedryingchamber and is connected, at its other end, to a lever-arm 20,supported by a rock-shaft 21. The lever-arm is operated by a cam 22,carried by a shaft 23, which is operated by a sprocket 24, the mechanismemployed being of any familiar type.

A second transfer mechanism, similar in all substantial points to thatalready described, is arranged to receive the sheets from the secondconveyor-belt and deliver them to a third conveyer. This secondmechanism is operated like the first, a cam 22 being at the other end ofthe shaft 23.

The dryingchamber is provided with a steamecoil or other suitable meansfor imparting heat and the conveyor-belt which last receives the sheetsis preferably arranged below the heating devices, in order that they mayhave an opportunityto cool. The sheets are delivered from itautomatically to an inclined shelf 25.

That I claim is- 1. In an apparatus for drying paper, the combinationwith an upper and a lower conveyer-belt of a series of transfer-tapescoperating with the lower conveyor-belt and a series of flier-rodsadapted to support the paper from the upper conveyor-belt to thetransfer-tapes, said iiier-rods in their raised position being inclinedat an angle to the upper conveyor-belt and in their lower position bclow and substantially parallel with the surface of the transfer-tapes,substantially as described.

2. In an apparatus for drying paper, the combination with a series ofconveyor-belts moving successively in opposite directions and arrangedone beneath the other, of a transfer mechanism consisting oftransfertapes, a series of flier-sticks rigidly mounted on a rock-shaftand adapted to pass between said tapes, and means for automatically operating the .rock-shaft at proper intervals, substantially as described.

In an apparatus for drying paper, the combination with an upper and alower conveyer-belt, of aseries of transfer-tapes adapted to cooperatewith the lower conveyer-belt, a series of flier-rods adapted to supportthe paper from the upper conveyor-belt to the transfer-tapes, saidiiier-rods in their raised position being inclined at an angle to theupper conveyer-belt and in their lower position below and parallel withthe surface of the transfer-tapes, a rock-shaft upon which saidflier-rods are rigidly mounted, a lever-arm on said rockshaft andautomatic cam mechanism adapted to operate said arm at intervals,substantially as described.

4. In an apparatus for drying paper, the combination with an upper and alower conveyer-belt traveling in opposite directions, of a series oftransfer-tapes having continuous movement in the same direction with thelower conveyer-belt, a series of flier-rods, a rock-shaft on which theflier-rods are rigidly mounted, a lever-arm linked to an arm on saidrock-shaft, a cam operating said lcvcrarm and means for periodicallyoperating the cam, substantially as described.

In testimony whereof I have hereunto set my hand and aiiixed my seal inpresence of two subscribing witnesses.

WILLIAM llOlililNGSls'Oll'lll. [L s] fitnesses FELIX R. SULLIVAN, JNO.J. SAUNDEns.

